公开(公告)号：US5616843A

公开(公告)日：1997-04-01

申请号：US622553

申请日：1996-03-25

申请人： Ludwig Schifferl ,  Andreas Wildgen

发明人： Ludwig Schifferl ,  Andreas Wildgen

IPC分类号： F02D41/18 ,  F02D41/22 ,  G01D3/036 ,  G01F1/698 ,  G01F1/68

CPC分类号： F02D41/222 ,  F02D41/187 ,  G01D3/036 ,  G01F1/698 ,  Y02T10/40

摘要： A temperature detector resistor and a sensor resistor are disposed in an intake manifold of an internal combustion engine. The two resistors each belong to a respective bridge branch of a measuring bridge having a bridge diagonal which is led to a first differential amplifier. A current in the bridge is adjusted in such a way that the sensor resistor always has a prescribed overtemperature. Due to backfires in the intake manifold, damage can occur to the sensor resistor due to sudden strong heating of the temperature detector resistor as a consequence of a strong rise in current. In order to avoid such damage, a third bridge branch is connected in parallel with the two bridge branches. The third bridge branch has a tap which is supplied, as is another tap, to inputs of a second differential amplifier having an output signal influencing the bridge current in such a way that the current is limited to a prescribed value. The device is applicable in internal combustion engines.

摘要翻译： 温度检测器电阻器和传感器电阻器设置在内燃机的进气歧管中。 两个电阻器各自属于具有桥对角线的测量桥的相应桥支路，其被引导到第一差分放大器。 调节桥中的电流，使得传感器电阻器总是具有规定的过温度。 由于进气歧管的反火，传感器电阻器可能由于电流剧烈上升而导致温度检测电阻突然强烈加热而损坏。 为了避免这种损坏，第三桥分支与两个桥分支并联连接。 第三桥式分支具有抽头，其作为另一个抽头被提供给具有影响桥式电流的输出信号的第二差分放大器的输入，使得电流被限制在规定值。 该装置适用于内燃机。

公开(公告)号：US07427347B2

公开(公告)日：2008-09-23

申请号：US10802037

申请日：2004-03-17

申请人： Andreas Bausewein ,  Michael Busch ,  Ludwig Schifferl

发明人： Andreas Bausewein ,  Michael Busch ,  Ludwig Schifferl

IPC分类号： G01N27/407

CPC分类号： G01N27/417 ,  G01N27/406

摘要： In a method for operating a measuring probe for measuring a gas concentration in a measuring gas with the aid of a solid electrolyte which conducts oxygen ions and has a measurement cavity for holding the measuring gas, a measuring electrode and an external electrode, a pumping current flowing between the measuring electrode and external electrode transporting oxygen ions from the measuring electrode to the external electrode, the measuring electrode being checked by determining the electrode area effectively available for oxygen diffusion.

摘要翻译： 在用于测量测量气体中测量气体浓度的测量探针的方法中，借助于传导氧离子的固体电解质并具有用于保持测量气体的测量腔，测量电极和外部电极，泵送电流 在测量电极和从测量电极传输氧离子到外部电极的外部电极之间流动，通过确定有效可用于氧气扩散的电极面积来检查测量电极。

公开(公告)号：US20050061684A1

公开(公告)日：2005-03-24

申请号：US10802037

申请日：2004-03-17

申请人： Andreas Bausewein ,  Michael Busch ,  Ludwig Schifferl

发明人： Andreas Bausewein ,  Michael Busch ,  Ludwig Schifferl

IPC分类号： F02D41/14 ,  G01N27/26 ,  G01N27/406 ,  G01N27/407 ,  G01N27/417

CPC分类号： G01N27/417 ,  G01N27/406

摘要： In a method for operating a measuring probe for measuring a gas concentration in a measuring gas with the aid of a solid electrolyte which conducts oxygen ions and has a measurement cavity for holding the measuring gas, a measuring electrode and an external electrode, a pumping current flowing between the measuring electrode and external electrode transporting oxygen ions from the measuring electrode to the external electrode, the measuring electrode being checked by determining the electrode area effectively available for oxygen diffusion.

摘要翻译： 在用于测量测量气体中测量气体浓度的测量探针的方法中，借助于传导氧离子的固体电解质并具有用于保持测量气体的测量腔，测量电极和外部电极，泵送电流 在测量电极和从测量电极传输氧离子到外部电极的外部电极之间流动，通过确定有效可用于氧气扩散的电极面积来检查测量电极。

公开(公告)号：US4889101A

公开(公告)日：1989-12-26

申请号：US244344

申请日：1988-09-16

申请人： Ludwig Schifferl

发明人： Ludwig Schifferl

IPC分类号： F02D41/06 ,  F02D41/18 ,  F02D41/34

CPC分类号： F02D41/187 ,  F02D41/065

摘要： Arrangement for calculating the fuel injection quantity for an internal combustion engine. An air mass meter has a heated sensor and an air temperature sensor. Since, during a stop condition of an internal combustion engine, any and all cooling by a mass stream of air is absent, the air temperature sensor is heated by the heated sensor when the air mass meter continues to be turned on. In order to eliminate the error in an output signal of the air mass meter that occurs when the internal combustion engine is restarted, the air mass meter is shut off during the stop condition of the internal combustion engine.

摘要翻译： 用于计算内燃机的燃料喷射量的装置。 空气质量计具有加热传感器和空气温度传感器。 由于在内燃机的停止状态下，不存在由大量空气流进行的任何和所有的冷却，所以当空气质量计继续打开时，空气温度传感器被加热的传感器加热。 为了消除在重新启动内燃机时发生的空气质量计的输出信号中的误差，在内燃机的停止状态期间关闭空气质量计。

公开(公告)号：US06564167B2

公开(公告)日：2003-05-13

申请号：US09781174

申请日：2001-02-12

申请人： Ludwig Schifferl

发明人： Ludwig Schifferl

IPC分类号： F02M3900

CPC分类号： G01D18/006

摘要： The position sensor has a sensor element and a transmitter part which can be displaced between a first end position and a second end position. The measurement signal passes through an extreme value between the first and the second end positions. The actual values of the measurement signal in the first and second end position are determined. The extreme value of the measurement signal between the first and second end position is also determined. The position is determined in dependence on the current actual value of the measurement signal, the extreme value, and the actual values in the first and second end positions.

摘要翻译： 位置传感器具有传感器元件和可在第一端部位置和第二端部位置之间移动的发送器部件。 测量信号通过第一和第二端位置之间的极值。 确定第一和第二结束位置的测量信号的实际值。 还确定了第一和第二终端位置之间的测量信号的极值。 该位置根据测量信号的当前实际值，极值和第一和第二结束位置中的实际值来确定。